Anisotropic Karmarkar stars in f(R, T)-gravity Monsur Rahaman, Ksh. Newton Singh, Abdelghani Errehymy, Farook Rahaman and Mohammed Daoud Eur. Phys. J. C, 80 3 (2020) 272 Published online: 26 March 2020 DOI: 10.1140/epjc/s10052-020-7842-9